Hi there! Are you looking for the official Deno documentation? Try docs.deno.com for all your Deno learning needs.

In

import type { In } from "https://github.gh-proxy.cn/raw.githubusercontent.com/baetheus/fun/main/kind.ts";

Access the Premappable substitution type at index N

type In<T extends Substitutions, N extends keyof T["in"]> = T["in"][N];

§Type Parameters

N extends keyof T["in"]

T["in"][N]